so, if the attached are my specs, where would I run the MR1 or the R09? (sorry for the bad scans, best I have available)
I reading your pre output specs correctly, suggest setting your preamp with output gain adjusted down ~2-3 steps below where the
output clipping light shows overload (your pre spec indicates clip LED at +11 dB, 2 dB above MR-1 max input spec).
Then adjust MR-1 deck (line input) REC level for having good VU readings.
This should give optimum preamp/MR-1 settings.
R-09's setting is ~#8-#10 (likely negative gain region) if preamp is adjusted the same as used for MR-1.
If wanting R-09 at #13 (claimed line input unity setting), then your preamp's gain needs be adjusted
downward by a few more steps below that being used with the MR-1, so R-09 set at #13 is getting good VU level with
preamp gain adjustment steering the deck's VU levels, or so it would seem.